How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
Which of the following factors will most likely lead to overcrowding within a population?
Absence of predators
Emigration
Food shortage
Absence of territorial behaviour
Correct answer is A
No explanation has been provided for this answer.
In ecological succession, since Iichens grow on bare rock, they are considered to be
primary consumers
pioneer organisms
climax organisms
producers
Correct answer is B
No explanation has been provided for this answer.
Population growth rate may be defined as the
mortality rate per unit area over a period
number of times an organism occurs within a given period
number of a particular species per unit area
net rate of natality and mortality in the habitat over a period
Correct answer is D
No explanation has been provided for this answer.
The following habitats can be used in the study of succession except
savanna grassland
abandoned farmland
a pond
a well cultivated land
Correct answer is D
No explanation has been provided for this answer.
Which of the following features is not an adaptation of plants to aquatic habitats?
Breathing roots for air entry
Flowers raised above water for the purpose of pollination
Spongy tissues containing gases for buoyancy
Hairy structures on the leaves to reduce water loss
Correct answer is D
No explanation has been provided for this answer.